The Honda 16166-Z1D-791 Main Nozzle is a genuine OEM component designed for GX270 horizontal shaft engines. Sourced directly from Honda, this part matches the original specification exactly, ensuring the carburetor meters fuel at the correct rate for clean starting and steady power delivery. If your GX270 engine is running rich, lean, or surging under load, a worn or clogged main nozzle is a common cause — and this direct replacement restores the fuel circuit to proper working order.
Key Features
- Accurate Fuel Metering — as a genuine Honda OEM part, this nozzle is sized to the original orifice specification, so the carburetor delivers the correct air-to-fuel mixture across the operating range.
- Direct OEM Replacement — built to the same dimensions as the part it replaces, this nozzle installs into the GX270 carburetor without modification or adaptation.
- Confirmed GX270 Fitment — designed specifically for GX270 horizontal shaft engines; verify your engine's serial number against the fitment table to confirm this is the correct nozzle for your serial range.
- Restores Engine Response — a correctly functioning main nozzle supports crisp throttle response and stable full-load performance; a worn or partially blocked nozzle causes surging, hesitation, and fuel economy loss.
The main nozzle is a precision-calibrated fuel metering jet located inside the carburetor body. It controls the volume of fuel drawn into the airstream during mid-range and full-throttle operation, and its orifice diameter is matched to the engine's displacement and airflow requirements. When the nozzle becomes clogged with varnish deposits or worn beyond its original diameter, the engine loses the ability to maintain a stable air-to-fuel ratio, resulting in rough running, power loss, or excessive fuel consumption. Replacing this component returns the carburetor's fuel circuit to its original calibration.
Part Details
| Part Number | 16166-Z1D-791 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Nozzle |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX270 | All |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
